Keitaro Hiwatashi

According to our database, Keitaro Hiwatashi authored at least 8 papers between 2020 and 2026.

Collaborative distances:

• Dijkstra number of five.
• Erdős number of four.

2026

Lower Bounds on the Bottleneck Complexity of Secure Multiparty Computation.

Reo Eriguchi, Keitaro Hiwatashi

IACR Commun. Cryptol., 2026

Ideal Private Simultaneous Messages Schemes and Their Applications.

Keitaro Hiwatashi, Reo Eriguchi

Proceedings of the 17th Innovations in Theoretical Computer Science Conference, 2026

2025

Negative Results on Information-Theoretic Additive Randomized Encodings.

Keitaro Hiwatashi

Proceedings of the Applied Cryptography and Network Security, 2025

2024

Correlated Randomness Reduction in Domain-Restricted Secure Two-Party Computation.

Keitaro Hiwatashi, Koji Nuida

IEICE Trans. Fundam. Electron. Commun. Comput. Sci., 2024

2023

Exponential Correlated Randomness Is Necessary in Communication-Optimal Perfectly Secure Two-Party Computation.

Keitaro Hiwatashi, Koji Nuida

Proceedings of the 4th Conference on Information-Theoretic Cryptography, 2023

Explicit and Nearly Tight Lower Bound for 2-Party Perfectly Secure FSS.

Keitaro Hiwatashi, Koji Nuida

Proceedings of the Applied Cryptography and Network Security, 2023

2021

Accelerating Secure (2+1)-Party Computation by Insecure but Efficient Building Blocks.

Keitaro Hiwatashi, Ken Ogura, Satsuya Ohata, Koji Nuida

Proceedings of the ASIA CCS '21: ACM Asia Conference on Computer and Communications Security, 2021

2020

An Efficient Secure Division Protocol Using Approximate Multi-bit Product and New Constant-Round Building Blocks.

Keitaro Hiwatashi, Satsuya Ohata, Koji Nuida

Proceedings of the Applied Cryptography and Network Security, 2020